Apparatus for conveying material.



No. 782,677. PATENTED FEB. 14, 1905.

H. MARCUS. APPARATUS FOR CONVEYING MATERIAL.

APPLICATION FILED AUG. 7, 1902.

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No. 782,677. PATENTED FEB. 14; 1905.

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APPARATUS FOR CONVEYING MATERIAL.

APPLIOATION FILED AUG. 7, 1902;

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No. 782,677. PATENTED FEB. 14,1905.

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APPARATUSFOR CONVEYING MATERIAL.

APPLICATION FILED, we. 7, 1902.

3 SHEETS-SHEET 3.

Patented February 14, 1905.

PATENT OFFICE.

-HERMANN MARCUS, OF COLOGNE, GERMANY.

APPARATUS FOR CONVEYING MATERIAL.

SPECIFICATION forming part of Letters Patent No. 782,677, dated February 14, 1905.

Application filed August 7, 1902. Serial No. 118,832.

To all whom it may concern:

Be it known that I, HERMANN MARCUS, engineer, a sub ect of the King of Prussia, Em-

peror of Germany, residing at 32 Karolinger-v ring, Cologne, in the Kingdom of Prussia, Germany, have invented certain new and useful Improvements in Reciprocating Conveyers, of which the following is a full, clear, and exact description. I

The present invention relates to improvements in apparatus for, conveying material, and relates more particularly to certain improvements in the apparatus described in my prior application filed September 28, 1900, Serial No. 31,399, wherein straight motionguides are employed for guiding conveyertroughs, and it is therein proposed to substitute for the joint-rods spirally-coiled springs. For special purposes it is advisable to provide rigid connections in place of the flexible connections and to do so by arranging frames having rockers for the races to roll on, so that flexible elements of the kind above referred to are then employed only to the extent and in the form as rendered necessary by circumstances. To this end the rockers are so formed as to enable them to travel along the races, and preferably this form will be circular with a radius which is situated either at the point of support or within or outside the frame or triangle that carries the rockers. Accordingly the shape of the races will therefore be plain or of a concavely or convexly curved form.

In some cases it is necessary to secure the position of the rockers relatively to the race in order to obviate shifting of the same. For this purpose safety devices are employed-- such, for example, as teeth, bolts, buffers, or straps or beltswhich serve to determine the position of the rocker relatively to the race during the to-and-fro motion of the trough.

In the accompanying drawings, which illustrate this improvement, Figures 1 and 2 are views in side elevation and transverse section, respectively, of a suspension device with a plane race. Figs. 3 and 4: show side elevations of a similar suspension device with aconcave race and with a convex race, respectively. Fig. 5 shows a side elevation of a modification of Fig. 3. Figs. 6 and 7 show a side elevation and transverse section, respectively, of a modification of Figs. 1 and 2'. Fig. 8 shows a detail side elevation of a modification of the point of support according to Fig. 1. Figs.

9 and 10 are views in side elevation and transverse section, respectively, of a further modification of the arrangement shown in Figs. 1 and 2.

In the modification shown in Figs. 1 and 2 the rocker a is carried by the frame a. It supports the; race in of the trough f and is constituted by an arc of a circle having its center at the point of support. The race l; has a plane surface, and consequently the trough will move to and fro in a rectilinear manner. The race may also be made with a curved surface, so that the trough in such a case would describe a rocking movement in its to-and-fro motion. If the radius with which the arc of the circle of the rocker a is struck is made smaller than that for the rocking movement, then the race is must be curved concavely, as shown in Fig. 3, if the trough is r to be guided in a rectilinear manner. If, on the contrary, the said radius is made larger than the radius of the rocking motion, then the'race is must be madeconvex, as shown in Figs. 4 and 5,'if the guidance is to be rectilinear. In order to prevent shifting of the rockerrelatively to the race, so that the mutually contacting surfaces shall simply roll on each other, then it is necessary to secure their positions relatively to each' other, and for this purpose various hereinafter-described means may be employed. The means for securing same in the construction shown in Figs. 1 and 2 consists of a tooth Z, which is removably fixed to the rocker a and which is guided between two stops m, that are fastened to the race in. The stops on are also preferably made removable, so that when any one part has become much worn it can be readily replaced by another. also be reversedthat is to say, the tooth Zmay be fixed to the race 71:, while the stops m are fixed on the rocker (6 Instead of this tooth with the stops the race is may be formed as shown in Fig. 3that is to say, so that it em- The arrangement may, of course,

braces with its partsik the rocker a on both sides, and thereby provides the necessary securing means.

In the arrangement shown in Fig. 4 the securing means consists of two straps or belts 12- and M, which cross each other and are fastened at one end to the race lcand at the other end to the rocker a In the rolling movement of the rocker a over the race It the belts a and n are wound on and 01f.

A further modification of the securing means is shown in Fig. 5. In this case the rocker and race are inverted and a fixed wall 0 is arranged on the race 70, while on the rocker a there are provided elastic bulfers or springs 2, between which the fixed wall 0 is located. The arrangement may also be reversed namely, the fixed wall 0 may be provided on the rocker a while the buffers or springs 19 are arranged on the race in.

Instead of the tooth Zemployed in Fig. 1 there may also be used a bolt 9, which is connected to the rocker a and is guided in a slot 9' in the race is, or vice versa, which is fixed to the race Z: and is guided in a slot in the rocker, Figs. 6 and 7.

Hitherto instead of the spiral springs proposed in application filed September 28, 1900, Serial No. 31,399, there have been employed flexible elementssuch as leaf-springs, ropes, belts, or straps-which wind on and off curved bearings. Figs. 1 and 3 show for the sake of explanation flexible elements of this kind with the adjacent curved bearings, and inthis case the point of support for the part a that carries the rocker is constructed in accordance therewith. For this purpose either, as shown in Fig. 1, the part a of the frame a, that carries the rocker a is clamped in between the spring curved bearings 5 of the supporting-block 0, so that these curved bearings are wound or roll on and off in the reciprocating movement, or a leaf-spring or a strap or belt dis fixed at one end, between the bearings e, and the other end between the triangle (4, as shown in Fig. '3, and then those parts which receive the leaf-spring or the belt (1 are formed as curved bearings b. In many cases this might be a disadvantage, mainly in those cases where dusty materials are conveyed by the trough. In this case the dust and dirt will soon cover the curved bearings, and thus cause a false movement. In

' order to prevent this, the points of support in the arrangements shown in Figs. 4 and 5 are constituted by knife-edges s with knife-edge caps or covers 25, so that the caps talways cover up the knife-edges s, and thus render it impossible for dust to lodge. Also in place of the knife-edges s there might be employed aslotted plate (f, as shown in Fig. 8, which moves on a concaved rocker a, the arrangement being such that the curved surface is covered over by a bent piece or strap y, passed through the slotted plate, and is thus protected from dust.

In the mode of construction illustrated in Figs. 9 and 10, in which the rocker (6 is secured against the race by means of a tooth Z engaging with stops m, corresponding with Fig. 1, it is best that the knife-edge cap it should form an integral part of'frame (4 across the conveyer, and the cap can even, as shown in the section, Fig. 10, join two opposite frames at, as the said cap covers the knife-edge 3 along its whole length. The said knife-edge s in Fig. 9 is held by means of hoops w, fastened to the channel-irons w, and as the cap tpasses under the channel-irons it is impossible for the said cap to spring away'from the knifeedge.

WVhat I claim, and desire to secure by Letters Patent, is-' l. A reciprocating conveyer comprising frames each having a rocker, races working in conjunction with the rocker, and supports for the frames.

2. A reciprocating conveyer comprising frames each having a rocker, races working in conjunction with the rockers, means for connecting the rockers and races,and supports for the frames.

3. A reciprocating conveyer comprising frames each having a rocker, races working in conjunction with the rockers, tooth and stops connecting the rockers and .races, and supports for the frames.

4. A reciprocating conveyer comprising frames each having a rocker, races working in conjunction with the rockers, supports for the frames, and plates and curve bearings between the supports and the frames.

5. A reciprocating conveyer comprising frames each having a rocker, races working in conjunction with the rockers, supports for the frames, and spring-plates and spring-curved bearings between the supports and the frames.

In witness whereof I subscribe my signature in presence of two witnesses.

HERMANN MARCUS.

Witnesses:

CHARLES LESIMPLE, JAH. 801mm. 

